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If a, b, and c are nonzero numbers and a + b = c, which of t
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17 Feb 2014, 03:45
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The Official Guide For GMAT® Quantitative Review, 2ND EditionIf a, b, and c are nonzero numbers and a + b = c, which of the following is equal to 1 ? (A) (a  b)/c (B) (a  c)/b (C) (b  c)/a (D) (b  a)/c (E) (c  b)/a Problem Solving Question: 99 Category: Arithmetic Operations on rational numbers Page: 74 Difficulty: 550 GMAT Club is introducing a new project: The Official Guide For GMAT® Quantitative Review, 2ND Edition  Quantitative Questions ProjectEach week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution. We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation. Thank you!
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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17 Feb 2014, 11:27
a + b = c , taking b to the other side, a = cb , take a to the other side , 1 =\(\frac{cb}{a}\) option E.
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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17 Feb 2014, 03:45



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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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17 Feb 2014, 05:47
Since we are given that a+b=c, the answer we have to pick has to be in one of the following forms:
a= cb b= ca c= a+b
The only valid choice is (E), since it is dividing equal values.



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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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17 Feb 2014, 09:18
Option E. (cb)/a=(a+bb)/a=1 Given c=a+b
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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18 Feb 2014, 07:45
I know it is not the quickest/best approach but I used number picking strategy: a=3; b=4; c=7;
Sub these values and you can clearly find out that answer is 1, especially if you are not so good at using variables.



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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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22 Feb 2014, 05:48



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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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21 Mar 2014, 00:38
One more method
Looking at the equation a+b = c,
we can conclude that c > a & c > b
Option A & Option D are not possible as a & b are on the same side of equation.
Option B & Option C will be negative as c > a & c > b
So Answer = E
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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01 Apr 2015, 12:19
Another way would be to just plugin numbers for a,b and c.



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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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02 Apr 2015, 22:38
Hi All, This question is perfect for TESTing VALUES. We're told that A, B and C are nonzero numbers and that A + B = C. We're asked which of the following answers is equal to 1. IF.... A = 2 B = 3 C = 5 Answer A: (23)/5 = 1/5 NOT a match Answer B: (25)/3 = 3/3 NOT a match Answer C: (35)/2 = 2/2 NOT a match Answer D: (32)/5 = 1/5 NOT a match Answer E: (53)/2 = 2/2 This IS a match Final Answer: GMAT assassins aren't born, they're made, Rich
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If a, b, and c are nonzero numbers and a + b = c, which of t
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23 Aug 2015, 00:24
We know that a + b = c. So, c > b > a Any option which has a  b, b  c, or a  c as numerator options will be incorrect > such an option will deduce negative value. This rules out option A, B and C. It is also noteworthy that c cannot be in the denominator as it is the biggest of the three and the solution will be < 1. This rules out option D. Only option left is option E. You can either mark it, it test the option. E is the correct answer. Another way would be to just solve the parent equation  a + b = c a = c  b 1 = (c  b)/a > Answer choice E! Cheers!
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t
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05 Mar 2018, 09:38
Bunuel wrote: The Official Guide For GMAT® Quantitative Review, 2ND EditionIf a, b, and c are nonzero numbers and a + b = c, which of the following is equal to 1 ? (A) (a  b)/c (B) (a  c)/b (C) (b  c)/a (D) (b  a)/c (E) (c  b)/a Problem Solving Question: 99 Category: Arithmetic Operations on rational numbers Page: 74 Difficulty: 550 GMAT Club is introducing a new project: The Official Guide For GMAT® Quantitative Review, 2ND Edition  Quantitative Questions ProjectEach week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution. We'll be glad if you participate in development of this project: 1. Please provide your solutions to the questions; 2. Please vote for the best solutions by pressing Kudos button; 3. Please vote for the questions themselves by pressing Kudos button; 4. Please share your views on difficulty level of the questions, so that we have most precise evaluation. Thank you! let a, b, c be 1, 2, 3 respectively. test the values. only E yields 1
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Re: If a, b, and c are nonzero numbers and a + b = c, which of t &nbs
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05 Mar 2018, 09:38






